APA (7. basım) Alıntı

(1987). Walford's guide to reference material (4th ed.). Library Association.

Chicago Style (17. basım) Atıf

Walford's Guide to Reference Material. 4th ed. London: Library Association, 1987.

MLA (9th ed.) Atıf

Walford's Guide to Reference Material. 4th ed. Library Association, 1987.